Today's high and low tide times for Chatham, MA, plus a 7-day tide table. Astronomical predictions from the nearest harmonic station — free and updated daily.
In Chatham, MA, the next high tide is at 3:24 AM (6.7ft) and the next low tide is at 10:06 AM (0.8ft), based on harmonic predictions for Chatham Harbor, Aunt Lydias Cove.
All high and low tides for Chatham today, in local time (America/New York). Heights are metres above chart datum.
High (H) and low (L) tide times and heights for the next seven days at Chatham.
| Date | Tides (local time · height) |
|---|---|
| Tue, Sep 15 | H 3:24 AM 6.7ftL 10:06 AM 0.8ftH 3:48 PM 5.7ftL 10:09 PM 1.1ft |
| Wed, Sep 16 | H 4:06 AM 6.6ftL 10:57 AM 1.0ftH 4:36 PM 5.3ftL 10:54 PM 1.5ft |
| Thu, Sep 17 | H 4:51 AM 6.4ftL 11:51 AM 1.2ftH 5:24 PM 5.0ftL 11:39 PM 1.9ft |
| Fri, Sep 18 | H 5:36 AM 6.2ftL 12:45 PM 1.4ftH 6:15 PM 4.7ft |
| Sat, Sep 19 | L 12:30 AM 2.1ftH 6:27 AM 6.0ftL 1:42 PM 1.5ftH 7:12 PM 4.5ft |
| Sun, Sep 20 | L 1:27 AM 2.3ftH 7:18 AM 5.9ftL 2:36 PM 1.5ftH 8:09 PM 4.5ft |
| Mon, Sep 21 | L 2:24 AM 2.3ftH 8:12 AM 5.8ftL 3:30 PM 1.5ftH 9:06 PM 4.7ft |
| Tue, Sep 22 | L 3:21 AM 2.2ftH 9:06 AM 5.8ftL 4:15 PM 1.4ftH 9:54 PM 4.9ft |
Predicted for Chatham Harbor, Aunt Lydias Cove, 1 km away (reliability: high — a close match — expect predictions within a few minutes of the published station table).
These are astronomical tide predictions — the rise and fall driven by the moon and sun, computed by harmonic analysis. They do not include weather effects: a strong onshore wind, low barometric pressure or a storm surge can push the real water level above the predicted high, and offshore winds or high pressure can hold it below the predicted low. For navigation or any safety-critical decision, always check the official tide tables and a live water-level gauge for Chatham.
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